Question

An electric iron of 250 watt, an electric
toaster of 500 watt and a washing machine
of 700 watt is used for 4 hours a day.
Calculate the energy consumed per day.​

Answer 1

Explanation:

$250 \times 4 + 500 \times 4 + 700 \times 4$

Answer 2

Answer:

5.8 kj= 5800 joules

we know power= work / time

power= 250watt+ 500watt+ 700watt=1450watts

but time is in hours so, 1450watt= 1.45 kWh

1.45kwh × 4 = 5.8 kj